A frame structure is like the skeleton of something – it uses connected beams to hold weight and provide shape.
Understanding Frame Structures
Frame structures are fundamental types of structures that support loads primarily through a network of connected beams. Imagine building something using sticks or bars connected together to form a stable shape. This is the basic idea behind a frame structure.
According to the reference, "Frame structures are made from beams connected to each other to support a load. The connected beams are known as the skeleton." This "skeleton" is what gives the structure its strength and allows it to stand up and carry weight.
Think about things that have a clear internal structure made of connected pieces.
How Frame Structures Work
- Beams: These are the individual pieces (like rods, bars, or planks) that make up the structure.
- Connections: The beams are joined together at specific points (often called joints or nodes). These connections are crucial for transferring loads through the structure.
- Load Support: The network of connected beams works together to distribute and support the weight (load) placed on the structure.
Frame Structure Examples for Grade 7
Examples of frame structures are all around us, from small objects to massive buildings. Here are some common and easy-to-understand examples suitable for Grade 7:
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A Birdcage: As mentioned in the reference, "A birdcage is an example of a man- made frame structure." Look closely at a birdcage; it's made of many thin bars connected to form the enclosure. These bars act as the beams, and their connections create the frame that gives the cage its shape and supports its weight.
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Bicycles: The main part of a bicycle (the frame you sit on) is a classic frame structure made of connected tubes (beams). This frame supports the rider's weight and holds the wheels and handlebars in place.
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Tables and Chairs: Many tables and chairs are built using legs and supports connected together to form a stable frame. The legs act as columns (vertical beams), and other parts act as horizontal beams, all joined to support the tabletop or seat.
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Buildings (Skyscrapers, Houses): Large buildings, especially modern skyscrapers, have a steel or concrete skeleton. This is a massive frame structure that supports the floors, walls, and roof. Even smaller houses often have a wooden frame structure hidden behind the walls.
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Bridges: Many types of bridges, like truss bridges, use a framework of connected beams (often in triangular shapes) to span distances and support the weight of traffic.
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Ladders: A simple ladder is a frame structure made of two long side beams connected by rungs.
Here's a simple table summarizing some examples:
| Example | How it works as a Frame Structure |
|---|---|
| Birdcage | Thin bars (beams) connected to form an enclosure. |
| Bicycle | Connected tubes (beams) form the main body. |
| Table/Chair | Legs and supports (beams) joined to support a surface. |
| Building | Steel or wooden skeleton (beams) supports the whole structure. |
| Bridge | Connected beams span a gap and support traffic. |
Understanding frame structures helps us appreciate how many everyday objects and large constructions are built using this fundamental principle of connected beams forming a strong skeleton.
